Section 506(2) in Karnataka Municipal Corporations Act, 1976
(2)A corporation shall be duly constituted under provisions of this Act, before the expiry of such period from the date of commencement of this Act as the Government may, by notification specify in respect of the City of Bangalore and the City of Hubli-Dharwar as the case may be, and from the date of the first meeting of the corporation as so constituted the bodies exercising the powers and performing the duties of a corporation shall stand dissolved.